JT Sprockets
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JT Sprockets 520 OE Type Rubber Cushioned Front Sprocket, 17T (JTF1185.17RB)

Part # JTF1185.17RB
Item #987643
Fits 17 motorcycles
  • Triumph
    • 900 Bonneville T100 · 2017–2019
    • 900 Bonneville T100 · 2020–2023
    • 900 Bonneville T100 · 2024–2026
    • 900 Bonneville T100 Stealth Ed. · 2024
    • 900 Bonneville T100 Icon Ed. · 2025
    • 900 Bonneville T100 Black · 2017–2018
    • 900 Bonneville T100 Black · 2020–2021
    • 900 Bonneville T100 Bud Ekins · 2020
    • 900 Scrambler · 2023–2026
    • 900 Scrambler Stealth Ed. · 2024
    • 900 Scrambler Icon Ed. · 2025
    • 900 Speed Twin · 2023–2026
    • 900 Street Twin · 2016–2022
    • 900 Street Cup · 2016–2019
    • 900 Street Scrambler · 2016–2019
    • 900 Street Scrambler · 2020–2021
    • 900 Street Twin · 2020–2021
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WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov
JT Sprockets OE Type Rubber Cushioned Front Sprocket — JTF1185.17RB (19T)
Product Details

JT's rubber-cushioned (RB) front sprocket — same shape as the steel, but with the OE noise-damping inserts that road-bike countershaft assemblies were designed around.

  • Bonded rubber inserts on the carrier face match the OE noise-vibration-harshness spec.
  • C49 high-carbon steel teeth, induction-hardened for service life.
  • CNC-machined to factory profile so your existing chain meshes correctly.
  • JT Sprockets is the world's largest sprocket manufacturer; produced in JT's UK and Thailand facilities.
  • Use when your bike originally shipped with a rubber-cushion front sprocket — most modern Honda, Yamaha, Kawasaki, Suzuki, BMW, Triumph road platforms.

Intended use: street, sport, sport-touring.

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